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42185560 = 2351054639
BaseRepresentation
bin1010000011101…
…1001101011000
32221101020201011
42200323031120
541244414220
64104103304
71021366654
oct240731530
987336634
1042185560
11218a36aa
1212164b34
138980591
145861a64
153a8465a
hex283b358

42185560 has 16 divisors (see below), whose sum is σ = 94917600. Its totient is φ = 16874208.

The previous prime is 42185543. The next prime is 42185569. The reversal of 42185560 is 6558124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42185569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527280 + ... + 527359.

It is an arithmetic number, because the mean of its divisors is an integer number (5932350).

Almost surely, 242185560 is an apocalyptic number.

42185560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42185560 is an abundant number, since it is smaller than the sum of its proper divisors (52732040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42185560 is a wasteful number, since it uses less digits than its factorization.

42185560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054650 (or 1054646 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 42185560 is about 6495.0411853967. The cubic root of 42185560 is about 348.1138263311.

The spelling of 42185560 in words is "forty-two million, one hundred eighty-five thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 1054639 2109278 4218556 5273195 8437112 10546390 21092780 42185560